The Great Cow Harbor 10K Run is a highly anticipated and nationally recognized road race that has been a cherished tradition in Northport, New York, since its inception in 1977. Renowned for its challenging yet picturesque course, which features rolling hills and scenic views of the Long Island Sound, the event attracts both elite athletes and recreational runners. Alongside the flagship 10K race, a popular 2K Fun Run/Walk offers an inclusive option for families and participants of all ages and abilities. This annual event, often drawing around 5,000 10K participants and over 1,000 for the 2K, is a significant community gathering that has consistently been ranked among America's top races and serves as a major fundraiser for local charities.
Races
10 km
2 km
Race Date:
20 September, 2025
The Great Cow Harbor 10K Run is a prestigious and nationally ranked 10‑kilometer road race held each September in Northport, Long Island, drawing up to 5,000 participants in a staggered start format along a scenic course of rolling hills and waterfront vistas. As a nonprofit event, its substantial proceeds support local charities including the Special Olympics Long Island and the Northwell Health Foundation.
Weather based on historical averages.
FAQs
What is the Great Cow Harbor 10K Run?
How long is the Great Cow Harbor 10K Run?
Where does the Great Cow Harbor 10K Run take place?
What is the elevation gain of the Great Cow Harbor 10K Run?
How can I prepare for the Great Cow Harbor 10K Run?
How do I choose the right training plan for the Great Cow Harbor 10K Run?
The Great Cow Harbor 10K Run is a prestigious and nationally ranked 10‑kilometer road race held each September in Northport, Long Island, drawing up to 5,000 participants in a staggered start format along a scenic course of rolling hills and waterfront vistas. As a nonprofit event, its substantial proceeds support local charities including the Special Olympics Long Island and the Northwell Health Foundation.
The Great Cow Harbor 10K Run is 10km long.
The Great Cow Harbor 10K Run takes place in Northport, New York, United States of America.
The Great Cow Harbor 10K Run elevation gain is 105 metres, which Runna classifies as a Moderate race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Great Cow Harbor 10K Run?
The Great Cow Harbor 10K Run is a prestigious and nationally ranked 10‑kilometer road race held each September in Northport, Long Island, drawing up to 5,000 participants in a staggered start format along a scenic course of rolling hills and waterfront vistas. As a nonprofit event, its substantial proceeds support local charities including the Special Olympics Long Island and the Northwell Health Foundation.
How long is the Great Cow Harbor 10K Run?
The Great Cow Harbor 10K Run is 10km long.
Where does the Great Cow Harbor 10K Run take place?
The Great Cow Harbor 10K Run takes place in Northport, New York, United States of America.
What is the elevation gain of the Great Cow Harbor 10K Run?
The Great Cow Harbor 10K Run elevation gain is 105 metres, which Runna classifies as a Moderate race.
How can I prepare for the Great Cow Harbor 10K Run?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Great Cow Harbor 10K Run?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
More
Sport:
Running
Tags:
Coastal
Kid friendly
Virtual
Fun Run
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by The Great Cow Harbor 10K Run or The Great Cow Harbor 10-Kilometer Run, Inc.. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the The Great Cow Harbor 10K Run website.
